From 56508b5013718e9df783ebb8495461357a97ceda Mon Sep 17 00:00:00 2001 From: Achiad Shochat Date: Thu, 11 Jun 2015 14:47:32 +0300 Subject: [PATCH] net/mlx5_core: Add transport domain alloc/dealloc support Each transport object, namely TIR and TIS, must have a transport domain number (TDN) identifier. The driver wrongly assumed that it is OK to use TDN=0 without explicit TDN allocation from the device. The TDN will also be used for isolating different processes once user mode Ethernet will be supported. Signed-off-by: Achiad Shochat Signed-off-by: Saeed Mahameed Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- .../ethernet/mellanox/mlx5/core/transobj.c | 35 +++++++++++++++++++ .../ethernet/mellanox/mlx5/core/transobj.h | 2 ++ 2 files changed, 37 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/transobj.c b/drivers/net/ethernet/mellanox/mlx5/core/transobj.c index 7a120283de2c..8d98b03026d5 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/transobj.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/transobj.c @@ -34,6 +34,41 @@ #include "mlx5_core.h" #include "transobj.h" +int mlx5_alloc_transport_domain(struct mlx5_core_dev *dev, u32 *tdn) +{ + u32 in[MLX5_ST_SZ_DW(alloc_transport_domain_in)]; + u32 out[MLX5_ST_SZ_DW(alloc_transport_domain_out)]; + int err; + + memset(in, 0, sizeof(in)); + memset(out, 0, sizeof(out)); + + MLX5_SET(alloc_transport_domain_in, in, opcode, + MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN); + + err = mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out)); + if (!err) + *tdn = MLX5_GET(alloc_transport_domain_out, out, + transport_domain); + + return err; +} + +void mlx5_dealloc_transport_domain(struct mlx5_core_dev *dev, u32 tdn) +{ + u32 in[MLX5_ST_SZ_DW(dealloc_transport_domain_in)]; + u32 out[MLX5_ST_SZ_DW(dealloc_transport_domain_out)]; + + memset(in, 0, sizeof(in)); + memset(out, 0, sizeof(out)); + + MLX5_SET(dealloc_transport_domain_in, in, opcode, + MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN); + MLX5_SET(dealloc_transport_domain_in, in, transport_domain, tdn); + + mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out)); +} + int mlx5_core_create_rq(struct mlx5_core_dev *dev, u32 *in, int inlen, u32 *rqn) { u32 out[MLX5_ST_SZ_DW(create_rq_out)]; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/transobj.h b/drivers/net/ethernet/mellanox/mlx5/core/transobj.h index 90322c11361f..f9ef244710d5 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/transobj.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/transobj.h @@ -33,6 +33,8 @@ #ifndef __TRANSOBJ_H__ #define __TRANSOBJ_H__ +int mlx5_alloc_transport_domain(struct mlx5_core_dev *dev, u32 *tdn); +void mlx5_dealloc_transport_domain(struct mlx5_core_dev *dev, u32 tdn); int mlx5_core_create_rq(struct mlx5_core_dev *dev, u32 *in, int inlen, u32 *rqn); int mlx5_core_modify_rq(struct mlx5_core_dev *dev, u32 rqn, u32 *in, int inlen); -- 2.20.1